Journal of Frontiers of Computer Science and Technology ›› 2011, Vol. 5 ›› Issue (1): 87-96.DOI: 10.3778/j.issn.1673-9418.2011.01.010

• 学术研究 • Previous Articles    

Pay-as-you-go Schema Integration in Web Dataspace

LIU Zhengtao1,2+, WANG Jiandong1   

  1. 1. College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    2. College of Computer Science and Engineering, Sanjiang University, Nanjing 210012, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-01-01 Published:2011-01-01
  • Contact: LIU Zhengtao

Web 数据空间边建边用模式集成

刘正涛1,2+, 王建东1   

  1. 1. 南京航空航天大学 信息科学与技术学院, 南京 210016
    2. 三江学院 计算机科学与工程学院, 南京 210012
  • 通讯作者: 刘正涛

Abstract: With the method of pay-as-you-go, a framework is proposed to create an intermediate schema and a Top-k data source schema, by which the schema integration is realized in Web dataspace. By the way mentioned above, experiments implemented in several real applications show high precision results and recall measurements,meanwhile, query validity is improved by the Top-k data source schema.

Key words: schema integration, pay-as-you-go, Web dataspace, metadata query

摘要: 使用边建边用的方法, 实现了Web 数据空间的模式集成。在模式集成时, 提出了一个Web 数据空间模式集成的框架, 运用组合方法, 创建了一个中间模式; 同时, 为用户提供了Top-k 个源数据模式。实验表明该方法通过用户参与可以提高查询的准确率与召回率, Top-k 个源数据模式的提供, 明显提高了查询的有效性

关键词: 模式集成, 边建边用, Web 数据空间, 元数据查询

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